1125221030142 has 32 divisors (see below), whose sum is σ = 2455993474560. Its totient is φ = 340841934720.

The previous prime is 1125221030117. The next prime is 1125221030233. The reversal of 1125221030142 is 2410301225211.

It is a happy number.

It is a super-2 number, since 2×1125221030142² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3184267 + ... + 3519942.

It is an arithmetic number, because the mean of its divisors is an integer number (76749796080).

Almost surely, 2^{1125221030142} is an apocalyptic number.

1125221030142 is an abundant number, since it is smaller than the sum of its proper divisors (1330772444418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125221030142 is a wasteful number, since it uses less digits than its factorization.

1125221030142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6706768.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 1125221030142 its reverse (2410301225211), we get a palindrome (3535522255353).

The spelling of 1125221030142 in words is "one trillion, one hundred twenty-five billion, two hundred twenty-one million, thirty thousand, one hundred forty-two".